Draft gear



H. C. PRIEBE sept. 4, 1923.

DRAFT GEAR Filed March 16. 19272Y s sheets-sheet 1 Sept. 4, 1923.

H. C. PRIEBE DRAFT GEAR lFiled March 16 5 Sheets-Shale?. 2

sept.4,1923. 1,466,128

H'. C. PRIEBE DRAFT GEAR Filed March 1e. lw22 n s sheets-sheet 5Patented sept. 4,` 1923.

UITED STATES- PA'rerrr oFFicE.

HERMAN' o. PRIEBE. oF BLUE ISLAND, ILLINOIS.

Daum GEAR.

Alipueanon med maren 16,1922. serial No 544,182.

`Gears, of which the following is a full,

- clear, concise, and exact description.

ploying mechanism for resisting draft strains. .One feature'of theinvention relates to those draft gears which include inner and outerfollowers and rockers upon such followers having opposed faces andoperatingr in conjunction with 4springs in opposing draft strains. Sucha draft gear is sho-wn in my Patent 1,282,940, dated October 29,l

.In accordance wi-th onefeature of my invention the rockers are hingedupon the followers to which they are respectively individual and wherethere are two sets of such .rockers with one rocker of Aeach set lindividual to each follower, the two rockers associated with eachfollower, in addition to being hinged upon such follower, are alsohinged together, there being preferably a single pintle upon eachollower upon which the rockers pertaining to such follower are hingedupon the follower and to each other.

In accordance with another feature of my invention the c oupler yoke ofa draft gear is' caused directly to engage the inner abutment providedfor the draft gear instead of having such engagement occur between theinner follower of the gear and such labutment..

I will explain my inventionmore fully by reference to the accompanyingdrawings in which Fig. 1 is a plan view, partially in section,illustrating the preferred form of draft gear with contiguous portionsof the underframe car structure 'also illustrated; Fig. 2 is a sectionalView on line 2-2 of Fig. 1; Fig. '3 is a sectional view on line 3 3ofFig.. 1; Fig. 4 is a sectional view on line 4--4 of Fig. 3; Fig. 5 isa sectional view on line 5-'5 of Fig, 3;

Fig. 6 is a perspective view illustrating the' innerand outer followersofthe draft gear; Fig. 7 is a perspective view illustratingthc two setsof rockers, the two rockers shown upon the left of this figurepertaining to different setsand bein follower, these partie ar followersbeing hinged upon one shown in separated relation for the sake ofillustration while the rockers shown at the, rlght hand of this ligureare complemental.

to the followers shown at the left 'of the figure and are illustrated inhinged connectlon; and Fig. 8 is a erspective view of one of the twolinks w ich are preferably. g employed in forming the coupler'yoke. Myinvention relates to draft gears em-v Like parts are indicated bysimilar charactersl of reference throughout' the different igures.

'I he coupler 1 has a coupler shank 2 with whlch the outer endsof thecoupler yoke are assembled by meansof a key 3 passing through' a slot inthe, coupler stem 'and through the sides 4 of the yoke these yoke sidesbeingpreferably in the yorm of. ind1v1dual links as illustrated in Fig.8. The

vthe outward movement of the' outer follower. A key 7 -passes throughthe inner follower 7. The draft gear -is interposed between the centersills or draft sills 9, the

keys 3, 5, and 7 passing through suitable slots formed in these sills.Forward or outward pull upon the inner follower is desil-ably` noteffected bythe direct engagementof the coupler links 4 with the key 7but is desirably` effected .by the engagement of the rear ends of theselinks with the lateral enlargements -or formations l() that are providedupon the inner follower 7. The slot 11 vin the inner follower thatreceives the key 7- is desirably formed, in part, through saidformations 10. The inner follower desirably also has an inwardlyextending projection l2, upon its inner side, that isalso interposedbetween and is ticuiing said links. The key slot 15 that relll ceivesthe lrey 3 is desirably formed through the formations 1li.

Springs 16 are interposed between the outer ends of the keys 5', 7, inaccordance with common practice, being 4employed "for the purpose ofresisting coupler strains. Other springs 17, 18 are oo-aisisl with thegear, being between the center sills 9 and being employed for. a similorpurpose. These springs 17 and 18 ere respectively individuel to theouter 'follower 5 end inner follower 7, there being two sets' of suchsprings for esch 'follower'. The follower 5 is provided with inwardlyextending projections 19 that enter the bores of the springs 1? while'the follower '7 is provided with outwardly extending projections 20that enter the lbores of the springs 18. ylhe formations 1e.- of theouter follower' are ertended inwardly su'iliciently to form pintlesockets 21, Fig. 6. 'The formations l0 ot the inner follower ereextended outward-ly suiliciently 'to form pintle sockets 22. Pintles 23end 2d are respectively mounted in their supports l-fl end 10. Y

'lhere are two sets or rockers, the rochers 25 end 26 of one set beingrespectively individual to the followers 5 end 7 end the rockers und .28ot the other set being, likewise, respectively individuel hto the`iollowes 5 end 7. The rochers 25 end 2l of each set ere hinged upon thepintle 23. rlhe rochers 25 und 28 of euch set and respec- Y tivelycomplementel to the rockers 25 ond 27 ore hinged upon the pintle 2d.'lhe recliers 25 und 27 ore lformed with outwardly extending,qproie-tions :29 thot enter 'the bores of the springs 17. The rochers 26and 28 ere formed with inwardly extending projections 3 0 thet enter thebores ot the springs 18. These rochers operate, es is made clear by theaforesaid potent, in conjunction with springs in resisting droit strainsand, by being hinted ss described, ere delinitely plsced heldinopersting positions. The hinging;a reduces the tendency to breakage andnids in holdin broken parts in piece in the of bresrsge. While therockers ot each set directly engage each other they ere not to be thuslimited, nor do l wish to be limited to the ettnchment of the formationsor blocks l0 and 14 to the followers that ere shown es carrying them, itbeing new with me to lieve these 'formations or blocks so essemblec'lwith the links or" the yoke es to be guided thereby whether theseformations or bloclzs ore integral with the followers or not.

While l lieve herein shown end particularly described the preferredembodiment-of the invention ll do not wish to be limited 'to the precisede'tsils of construction shown es chang-es muy readily be mede withoutdeparting trom the s irit oi' my invention, but having thus descri ed myinvention l claim incense es new end desire to secure by Letters Patentthe following- 1.' A. draft gear includinge coupler; inner sind outer.followers actuated thereby 'and movable each toward the other; springs,one individual to each follower, for resistin the approach of thefollowers toward each oher; end two sets of rockers eacli'set comprisingtwo rockers having opposed feces, one rocker being individuel to euchfollower sind actuateble thereby, said rockers being interposed betweenend engaged by scid springs 4to maintain the rockers in ection undresist follower effected movement thereof, the two rockersthet areindividuel to esch follower beingl in hinged connection 'with each otherend with thefollower.

2. A draft geur including` u coupler; inner and outer followers actuatedthereby und movable esch towsrd the other; springs, one individuel toeschfollower, for resisting the approach of 'the `hillowers towsrd euchother; end two sets of rochers euch set comprising two rockers hsvingopposed laces,

one rocker being,- individuel to 'each follower end actuetable thereby,said rochers being interposed between end engaged by seid springs tomaintain the rockers in action end resist follower effected movementthereof,

the twoproclrers that are individuel 4to each f tollower being in hingedconnection with eachother.

3. A drett gear including e coupler stern; o yole comprising twolongitudinali links assembled at their outer ends .with seid stem;

'sind motion resisting mechanism including e t'ollower between sindlinks ond having lormations on thesidesthereo that are adjacent saidlinks, seid formations entering.; the links respectively adjacentthereto to couple seid follower und links., seid follower hoving sninwardly extending projection, upon its inner side, vthat is alsointerposed betweensnd is engsgeeble by said links.

A draft geur including e. coupler stem; e. yoke comprising two'longitudinal links assembled at their outer ends with seid stern; endmotion resisting mechanism including .a 4follower betweenseid links andhei/ing formations on the sides thereof theft ere edjecentseid linlrs,seid ttormations entering kthe links respectively adjacent thereto tocouple said follower and links` seid tollowerh'sv- .ing an inwardlyextending' projection, upon its inner side, that is also interposedbetween and is engogeeble by said linlrs in combinstion with draft sillsbetween which the draft gear. is placed; a key passing throughregistering slots that are formed in said sills und through seidfollower end scid linlr engeging "formations on the follower; undebutments carried upon said sills end engegesble by the inner ends ofseid links.

5. A draft geur including a coupler stein; e. yoke; motion resistingmechanism including a follower between the sides of said yoke; tworockers operated upon by said follower and also. disposed between thesides of said yoke and in hinged assembly with each other; vand blockshaving said rockers therebetween and with which the rockers areassembled to turn with respect thereto, said blocks and yoke beinginterengaged to guide the blocks in their movement longitudinally of thegear.

6. A draft gear including a coupler stem; a yoke in the form of twolinks; motion resist-ing mechanism including a follower between saidlinks; two rockers between said links and operated upon by said followerand in hinged assembly with each other; and blocks having said rockerstherebetween and with which the rockers are assembled to turn withrespect thereto, said blocks being in engagement therewith tobe guidedthereby longitudinally of the gear.

7. A draft gear including a coupler stem;

a yoke; motion resisting mechanism includ- 25 ing a follower between thesides of said yoke;ltwo rockers operated upon by said follower and alsodisposed between the sides of said yoke; a pintle upon which saidrockers are hinged and extending across the space between the sides ofthe yoke; and blocks, one upon each end of the pintle, that haveengagement with and along the sides of the yoke to be guided in theirmovement longitudinally of the gear.

8. A draft gear including a coupler stem;

a yoke in the form of two links; motion resisting mechanism including afollower between said links; two rockers between said links and operatedupon by said follower; a pintleupon which said rockers are hinged andextending across the space between the sides of the yoke; and blocks,one upon each end of the pintle, respectively surrounded by said linksand in engagementtherewith to be guided thereby longitudinally of thegear.

l In witness whereo lV hereunto subscribe my name this 27th day ofJanuary, D. 1922.

HERMAN c. PRIEBE.

